/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 * 
 *     http://www.apache.org/licenses/LICENSE-2.0
 *     
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.jena.hadoop.rdf.mapreduce.transform;

import org.apache.jena.graph.Node ;
import org.apache.jena.graph.Triple ;

/**
 * A mapper which converts triples into quads using the subjects of the triples
 * as the graph nodes
 * 
 * 
 * @param <TKey>
 *            Key type
 * 
 */
public class TriplesToQuadsBySubjectMapper<TKey> extends AbstractTriplesToQuadsMapper<TKey> {

    @Override
    protected final Node selectGraph(Triple triple) {
        return triple.getSubject();
    }

}
